./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 ................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:00:46,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:00:46,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:00:46,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:00:46,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:00:46,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:00:46,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:00:46,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:00:46,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:00:46,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:00:46,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:00:46,685 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:00:46,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:00:46,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:00:46,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:00:46,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:00:46,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:00:46,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:00:46,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:00:46,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:00:46,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:00:46,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:00:46,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:00:46,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:00:46,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:00:46,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:00:46,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:00:46,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:00:46,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:00:46,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:00:46,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:00:46,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:00:46,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:00:46,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:00:46,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:00:46,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:00:46,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:00:46,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:00:46,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:00:46,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:00:46,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:00:46,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:00:46,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:00:46,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:00:46,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:00:46,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:00:46,769 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:00:46,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:00:46,769 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:00:46,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:00:46,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:00:46,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:00:46,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:00:46,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:00:46,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:00:46,771 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:00:46,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:00:46,772 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:00:46,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:00:46,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:00:46,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:00:46,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:00:46,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:00:46,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:00:46,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:00:46,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:00:46,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:00:46,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:00:46,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:00:46,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:00:46,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:00:46,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-10-25 22:00:47,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:00:47,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:00:47,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:00:47,210 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:00:47,212 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:00:47,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-25 22:00:47,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff00a0efa/aa37164e728c409f81020cd9962b4bba/FLAGd229df579 [2020-10-25 22:00:47,849 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:00:47,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-25 22:00:47,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff00a0efa/aa37164e728c409f81020cd9962b4bba/FLAGd229df579 [2020-10-25 22:00:48,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff00a0efa/aa37164e728c409f81020cd9962b4bba [2020-10-25 22:00:48,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:00:48,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:00:48,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:00:48,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:00:48,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:00:48,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540cf434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48, skipping insertion in model container [2020-10-25 22:00:48,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:00:48,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:00:48,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:00:48,619 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:00:48,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:00:48,674 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:00:48,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48 WrapperNode [2020-10-25 22:00:48,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:00:48,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:00:48,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:00:48,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:00:48,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:00:48,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:00:48,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:00:48,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:00:48,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... [2020-10-25 22:00:48,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:00:48,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:00:48,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:00:48,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:00:48,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:00:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 22:00:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:00:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-25 22:00:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-25 22:00:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-25 22:00:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:00:48,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:00:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-25 22:00:48,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:00:49,266 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:00:49,267 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 22:00:49,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:49 BoogieIcfgContainer [2020-10-25 22:00:49,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:00:49,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:00:49,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:00:49,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:00:49,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:00:48" (1/3) ... [2020-10-25 22:00:49,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3272a92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:00:49, skipping insertion in model container [2020-10-25 22:00:49,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:48" (2/3) ... [2020-10-25 22:00:49,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3272a92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:00:49, skipping insertion in model container [2020-10-25 22:00:49,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:49" (3/3) ... [2020-10-25 22:00:49,305 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-10-25 22:00:49,318 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:00:49,323 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 22:00:49,335 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 22:00:49,363 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:00:49,363 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:00:49,363 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:00:49,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:00:49,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:00:49,364 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:00:49,364 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:00:49,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:00:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-25 22:00:49,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:00:49,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:49,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:49,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:49,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:49,395 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-25 22:00:49,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:00:49,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101574959] [2020-10-25 22:00:49,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:00:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:49,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101574959] [2020-10-25 22:00:49,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:49,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 22:00:49,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104691260] [2020-10-25 22:00:49,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:00:49,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 22:00:49,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:00:49,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:00:49,601 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-25 22:00:49,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:49,625 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-25 22:00:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:00:49,627 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 22:00:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:49,639 INFO L225 Difference]: With dead ends: 59 [2020-10-25 22:00:49,639 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 22:00:49,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:00:49,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 22:00:49,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-25 22:00:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 22:00:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-25 22:00:49,698 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-25 22:00:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:49,698 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-25 22:00:49,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:00:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-25 22:00:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:00:49,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:49,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:49,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 22:00:49,700 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:49,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:49,701 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-25 22:00:49,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 22:00:49,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795026103] [2020-10-25 22:00:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 22:00:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:00:49,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:00:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 22:00:49,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 22:00:49,875 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 22:00:49,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 22:00:49,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 22:00:49,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:00:49 BoogieIcfgContainer [2020-10-25 22:00:49,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:00:49,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:00:49,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:00:49,935 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:00:49,936 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:49" (3/4) ... [2020-10-25 22:00:49,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 22:00:49,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:00:49,947 INFO L168 Benchmark]: Toolchain (without parser) took 1716.16 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 29.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,948 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:00:49,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.27 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 23.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 21.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,952 INFO L168 Benchmark]: Boogie Preprocessor took 30.13 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 20.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,954 INFO L168 Benchmark]: RCFGBuilder took 521.14 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 37.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,955 INFO L168 Benchmark]: TraceAbstraction took 646.79 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 30.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2020-10-25 22:00:49,958 INFO L168 Benchmark]: Witness Printer took 6.47 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 29.8 MB in the end (delta: 292.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:00:49,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory was 28.0 MB in the beginning and 27.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.27 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 23.3 MB in the end (delta: -1.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.38 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 21.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.13 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 20.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.14 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 20.0 MB in the beginning and 37.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 646.79 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 30.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Witness Printer took 6.47 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 29.8 MB in the end (delta: 292.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 22:00:52,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:00:52,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:00:52,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:00:52,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:00:52,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:00:52,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:00:52,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:00:52,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:00:52,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:00:52,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:00:52,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:00:52,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:00:52,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:00:52,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:00:52,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:00:52,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:00:52,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:00:52,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:00:52,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:00:52,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:00:52,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:00:52,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:00:52,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:00:52,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:00:52,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:00:52,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:00:52,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:00:52,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:00:52,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:00:52,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:00:52,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:00:52,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:00:52,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:00:52,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:00:52,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:00:52,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:00:52,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:00:52,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:00:52,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:00:52,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:00:52,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 22:00:52,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:00:52,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:00:52,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:00:52,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:00:52,727 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:00:52,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:00:52,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:00:52,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:00:52,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:00:52,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:00:52,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:00:52,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:00:52,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 22:00:52,730 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 22:00:52,730 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:00:52,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:00:52,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:00:52,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:00:52,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:00:52,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:00:52,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:00:52,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:00:52,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:00:52,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:00:52,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:00:52,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:00:52,732 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 22:00:52,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 22:00:52,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:00:52,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:00:52,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 22:00:52,734 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-10-25 22:00:53,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:00:53,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:00:53,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:00:53,257 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:00:53,258 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:00:53,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-25 22:00:53,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ea47017/8e42d193df6641b28d9f25e116ee43ca/FLAGb4b4b09b4 [2020-10-25 22:00:53,906 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:00:53,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-25 22:00:53,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ea47017/8e42d193df6641b28d9f25e116ee43ca/FLAGb4b4b09b4 [2020-10-25 22:00:54,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87ea47017/8e42d193df6641b28d9f25e116ee43ca [2020-10-25 22:00:54,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:00:54,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:00:54,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:00:54,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:00:54,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:00:54,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c833a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54, skipping insertion in model container [2020-10-25 22:00:54,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:00:54,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:00:54,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:00:54,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:00:54,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:00:54,610 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:00:54,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54 WrapperNode [2020-10-25 22:00:54,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:00:54,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:00:54,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:00:54,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:00:54,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:00:54,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:00:54,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:00:54,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:00:54,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... [2020-10-25 22:00:54,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:00:54,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:00:54,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:00:54,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:00:54,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:00:54,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 22:00:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 22:00:54,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-25 22:00:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-25 22:00:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:00:54,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:00:54,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-25 22:00:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-25 22:00:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-25 22:00:55,706 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:00:55,707 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-25 22:00:55,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:55 BoogieIcfgContainer [2020-10-25 22:00:55,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:00:55,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:00:55,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:00:55,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:00:55,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:00:54" (1/3) ... [2020-10-25 22:00:55,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dcc403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:00:55, skipping insertion in model container [2020-10-25 22:00:55,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:00:54" (2/3) ... [2020-10-25 22:00:55,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dcc403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:00:55, skipping insertion in model container [2020-10-25 22:00:55,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:55" (3/3) ... [2020-10-25 22:00:55,720 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-10-25 22:00:55,734 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:00:55,743 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 22:00:55,758 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 22:00:55,803 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:00:55,803 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:00:55,803 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:00:55,804 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:00:55,804 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:00:55,804 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:00:55,805 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:00:55,805 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:00:55,824 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-25 22:00:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-25 22:00:55,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:55,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:55,834 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:55,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:55,842 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-25 22:00:55,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:55,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955359799] [2020-10-25 22:00:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 22:00:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:56,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-25 22:00:56,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:56,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:56,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:56,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955359799] [2020-10-25 22:00:56,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:56,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-25 22:00:56,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349813907] [2020-10-25 22:00:56,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 22:00:56,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:56,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 22:00:56,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:00:56,062 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-25 22:00:56,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:56,085 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-25 22:00:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 22:00:56,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-25 22:00:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:56,098 INFO L225 Difference]: With dead ends: 59 [2020-10-25 22:00:56,099 INFO L226 Difference]: Without dead ends: 27 [2020-10-25 22:00:56,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 22:00:56,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-25 22:00:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-25 22:00:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-25 22:00:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-25 22:00:56,143 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-25 22:00:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:56,143 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-25 22:00:56,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 22:00:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-25 22:00:56,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-25 22:00:56,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:56,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:56,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 22:00:56,361 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:56,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:56,363 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-25 22:00:56,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:56,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966627645] [2020-10-25 22:00:56,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-25 22:00:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:56,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-25 22:00:56,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:56,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:56,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:56,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966627645] [2020-10-25 22:00:56,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:56,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 22:00:56,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989846632] [2020-10-25 22:00:56,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 22:00:56,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:56,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 22:00:56,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:00:56,809 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-10-25 22:00:57,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:57,132 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-10-25 22:00:57,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 22:00:57,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-25 22:00:57,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:57,135 INFO L225 Difference]: With dead ends: 51 [2020-10-25 22:00:57,135 INFO L226 Difference]: Without dead ends: 34 [2020-10-25 22:00:57,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-25 22:00:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-25 22:00:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-10-25 22:00:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:00:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-25 22:00:57,145 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2020-10-25 22:00:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:57,145 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-25 22:00:57,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 22:00:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-25 22:00:57,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-25 22:00:57,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:57,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:57,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-25 22:00:57,362 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:57,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:57,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-10-25 22:00:57,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:57,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237974803] [2020-10-25 22:00:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-25 22:00:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:57,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 22:00:57,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:57,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:57,966 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-10-25 22:00:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:58,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [237974803] [2020-10-25 22:00:58,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:58,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-25 22:00:58,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616749105] [2020-10-25 22:00:58,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 22:00:58,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:58,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 22:00:58,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:00:58,083 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-10-25 22:00:58,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:58,297 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-25 22:00:58,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 22:00:58,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-25 22:00:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:58,303 INFO L225 Difference]: With dead ends: 34 [2020-10-25 22:00:58,303 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:00:58,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-25 22:00:58,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:00:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-25 22:00:58,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:00:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-25 22:00:58,311 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-10-25 22:00:58,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:58,311 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-25 22:00:58,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 22:00:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-25 22:00:58,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 22:00:58,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:58,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:58,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-25 22:00:58,514 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:58,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2020-10-25 22:00:58,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:58,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1904651428] [2020-10-25 22:00:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-25 22:00:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:58,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-25 22:00:58,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:58,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:58,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1904651428] [2020-10-25 22:00:58,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:58,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-25 22:00:58,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326273919] [2020-10-25 22:00:58,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 22:00:58,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:58,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 22:00:58,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-25 22:00:58,816 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-10-25 22:00:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:58,936 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-25 22:00:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 22:00:58,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-25 22:00:58,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:58,938 INFO L225 Difference]: With dead ends: 34 [2020-10-25 22:00:58,938 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:00:58,940 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-25 22:00:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:00:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-25 22:00:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:00:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-10-25 22:00:58,946 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2020-10-25 22:00:58,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:58,946 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-10-25 22:00:58,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 22:00:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-10-25 22:00:58,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 22:00:58,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:58,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:59,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-25 22:00:59,162 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2020-10-25 22:00:59,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:59,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858796762] [2020-10-25 22:00:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-25 22:00:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:00:59,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-25 22:00:59,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:00:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:59,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:00:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:00:59,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858796762] [2020-10-25 22:00:59,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:00:59,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-25 22:00:59,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022156516] [2020-10-25 22:00:59,471 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-25 22:00:59,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:00:59,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-25 22:00:59,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-25 22:00:59,472 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2020-10-25 22:00:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:00:59,686 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-10-25 22:00:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 22:00:59,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-25 22:00:59,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:00:59,688 INFO L225 Difference]: With dead ends: 25 [2020-10-25 22:00:59,688 INFO L226 Difference]: Without dead ends: 22 [2020-10-25 22:00:59,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-25 22:00:59,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-25 22:00:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-25 22:00:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-25 22:00:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-25 22:00:59,700 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2020-10-25 22:00:59,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:00:59,702 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-25 22:00:59,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-25 22:00:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-25 22:00:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-25 22:00:59,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 22:00:59,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 22:00:59,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-25 22:00:59,904 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 22:00:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 22:00:59,905 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2020-10-25 22:00:59,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 22:00:59,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028618814] [2020-10-25 22:00:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-25 22:01:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 22:01:00,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-25 22:01:00,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 22:01:00,149 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 22:01:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:00,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 22:01:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 22:01:00,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028618814] [2020-10-25 22:01:00,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 22:01:00,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-10-25 22:01:00,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280027648] [2020-10-25 22:01:00,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-25 22:01:00,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 22:01:00,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-25 22:01:00,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-25 22:01:00,633 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 16 states. [2020-10-25 22:01:01,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 22:01:01,120 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-25 22:01:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 22:01:01,127 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-10-25 22:01:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 22:01:01,128 INFO L225 Difference]: With dead ends: 22 [2020-10-25 22:01:01,128 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 22:01:01,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-25 22:01:01,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 22:01:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 22:01:01,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 22:01:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 22:01:01,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-25 22:01:01,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 22:01:01,131 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 22:01:01,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-25 22:01:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 22:01:01,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:01:01,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-25 22:01:01,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 22:01:01,818 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-10-25 22:01:01,821 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-10-25 22:01:01,821 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-25 22:01:01,821 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 22:01:01,821 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 22:01:01,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:01:01,822 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:01:01,822 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-10-25 22:01:01,822 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-10-25 22:01:01,823 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-25 22:01:01,823 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-10-25 22:01:01,823 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-10-25 22:01:01,823 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-10-25 22:01:01,823 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-10-25 22:01:01,823 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-25 22:01:01,824 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-25 22:01:01,824 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-10-25 22:01:01,825 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-10-25 22:01:01,825 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 22:01:01,826 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 22:01:01,826 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-25 22:01:01,826 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-10-25 22:01:01,826 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:01:01,826 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-10-25 22:01:01,827 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-10-25 22:01:01,827 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-10-25 22:01:01,827 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-10-25 22:01:01,827 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-25 22:01:01,828 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-10-25 22:01:01,828 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-25 22:01:01,828 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-25 22:01:01,828 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-10-25 22:01:01,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,852 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,853 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,853 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,853 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,853 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,854 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,855 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,856 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,857 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,857 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,858 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,858 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,860 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,861 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,862 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,862 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,862 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,863 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,863 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,864 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,865 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,865 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,865 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,866 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:01:01 BoogieIcfgContainer [2020-10-25 22:01:01,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:01:01,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:01:01,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:01:01,871 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:01:01,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:00:55" (3/4) ... [2020-10-25 22:01:01,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:01:01,890 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-25 22:01:01,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 22:01:01,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:01:01,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 22:01:01,925 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-25 22:01:01,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-25 22:01:01,927 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-25 22:01:01,957 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:01:01,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:01:01,959 INFO L168 Benchmark]: Toolchain (without parser) took 7683.25 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.4 MB in the beginning and 28.2 MB in the end (delta: -733.3 kB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,960 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:01,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.46 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.0 MB in the end (delta: -77.8 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 25.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,962 INFO L168 Benchmark]: Boogie Preprocessor took 82.32 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:01:01,963 INFO L168 Benchmark]: RCFGBuilder took 917.23 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 29.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,964 INFO L168 Benchmark]: TraceAbstraction took 6157.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 31.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,965 INFO L168 Benchmark]: Witness Printer took 87.40 ms. Allocated memory is still 60.8 MB. Free memory was 31.8 MB in the beginning and 28.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 22:01:01,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.46 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 27.0 MB in the end (delta: -77.8 kB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.51 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 25.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.32 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 23.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 917.23 ms. Allocated memory is still 50.3 MB. Free memory was 23.5 MB in the beginning and 29.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6157.44 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 31.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * Witness Printer took 87.40 ms. Allocated memory is still 60.8 MB. Free memory was 31.8 MB in the beginning and 28.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-10-25 22:01:01,988 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,989 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,989 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-10-25 22:01:01,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 15]: Loop Invariant [2020-10-25 22:01:01,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:01,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:01,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:01,999 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,000 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-10-25 22:01:02,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:02,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,002 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-25 22:01:02,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-25 22:01:02,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-25 22:01:02,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 319 SDslu, 120 SDs, 0 SdLazy, 137 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 188 HoareAnnotationTreeSize, 5 FomulaSimplifications, 195 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 22 QuantifiedInterpolants, 17102 SizeOfPredicates, 40 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...